Evaluation of the statistical distribution fitness of rainfallprediction in the Karun Murghab Watershed

Planning and water resources management requires an estimate of the amount of rainfall andwater resources in the watershed .In this research, annual rainfall data from Gard station, in theMurghab Watershed as a Karun sub-basin was examined using SMADA and HYFA softwares.To determine the best fit function, statistical methods based on maximum likelihood were used.Normal distribution was found to be the distribution to gives the reasonable estimate of rainfalldata among six others .The results of this study by providing an optimized method to estimaterainfall and hence the sustainability of water resources of the watershed to be used by decisionmakersand researchers.

کلیدواژه ها:

Rainfall ، Water Resources ، Watershed Management ، HYFA ، SMADA